Existing pre-trained language models (PLMs) are often computationally expensive in inference, making them impractical in various resource-limited real-world applications. To address this issue, we propose a dynamic token reduction approach to acceler
ate PLMs' inference, named TR-BERT, which could flexibly adapt the layer number of each token in inference to avoid redundant calculation. Specially, TR-BERT formulates the token reduction process as a multi-step token selection problem and automatically learns the selection strategy via reinforcement learning. The experimental results on several downstream NLP tasks show that TR-BERT is able to speed up BERT by 2-5 times to satisfy various performance demands. Moreover, TR-BERT can also achieve better performance with less computation in a suite of long-text tasks since its token-level layer number adaption greatly accelerates the self-attention operation in PLMs. The source code and experiment details of this paper can be obtained from https://github.com/thunlp/TR-BERT.
The aim of this study is to collect more information about
Congenital hypothyroidism (CH) in Syria due to it being one of the
most common causes of preventable mental retardation if detected
at early stage and treatment is preventable, and to the
absence of any
published statistics regarding it in our country, and to emphasize on
the necessity of applying a mandatory newborn screening program
for early diagnosis of congenital hypothyroidism to improvement of
child’s life, by investigating the adequacy of the clinical
determination the physician's experience to get an early diagnosis.
تناول البحث الحالي دراسة تفاعل الإرجاع الفوتوكيميائي للكروم السداسيّ المستحثّ بوساطة معقّدات مانديلات الحديد الثلاثيّ في المحاليل المائيّة. و تمّ إجراء تجارب مقارنة من أجل تحديد الشروط المثلى لتفاعل الإرجاع الضوئي للكروم السداسيّ في الجملة:؛ حيث دُرس
ت تأثيرات كلّ من: - الوسط و التراكيز الابتدائيّة للمكوّنات المختلفة؛ الحديد الثلاثيّ و حمض المانديليك و الكروم السداسيّ، على فعالية إرجاع الكروم السداسيّ.
أظهرت النتائج التجريبيّة أنّه يمكن لمعقّد مانديلات الحديد الفعّال ضوئياً إرجاع الكروم السداسيّ باستخدام الضوء فوق البنفسجي/ المرئي ، و أنّ قيمة المُثلى للإرجاع الفوتوكيميائي للكروم السداسيّ بوساطة هذا المعقّد تبلغ نحو .
و تبيّن أنّ فعالية الإرجاع الضوئي للكروم السداسيّ تزداد بازدياد التراكيز الابتدائيّة لكلّ من الحديد الثلاثيّ و حمض المانديليك، و لكنّها تتناقص كلّما ازدادت التراكيز الابتدائيّة للكروم السداسيّ.
و قد تمّ اقتراح آليّة محتملة لتفاعل الإرجاع الضوئي للكروم السداسيّ بوساطة معقد مانديلات الحديد الفعّال ضوئياً في المحلول المائي.
We try in this research to focus on the void that is created by
the absence of proper materials management on construction sites.
To managing a productive and cost in the site, an efficient material
management is very essential.
The aim of research is to calculate the emissions of carbon
dioxide (CO2) generated by the cement industry (Tartous Cement
Company as a case study), depending on the standards and
principles set by the World Resources Institute protocol (WRI) and
the World Business Council for Sustainable Development Protocol
(WBCSD 2011), in addition to standards and guidelines developed
by the Intergovernmental Panel on Climate Change (IPCC 2007).
The study included 40 cases of supracondylar humeral fracture in children whose
attended al-Assad University Hospital in Lattakia between 2013 and 2014. Patients' ages
ranged between 2 and 13 years , the ratio of males/female was 3,4/1. Greatest ra
nge of
injury in left arm 77,5% . Closed reduction and percutaneous pinning was used in 33
patients and open reduction with cross-wiring in 7 patients .Postoperative complications
occurred in seven(17,5%) patients. They consisted in iatrogenic nerve injuries in five
(12,5%) patients ,one case of infection around the pins ,and one case of nonunion, All
recovered without sequels.
Satisfactory outcomes were noted after 5 months of physical therapy in 32 (97%)
patients in
the percutaneous pinning group,and5 (71,4%) patients in the open reduction with
cross-wiring group .
The Anaerobic Ammonium Oxidation (Anammox) is a new method
to reduce the concentration of nitrogen in waste water , this reaction oxidizes ammonium to nitrogen gas and results little amount of nitrate by using ammonium as electron donor , and nitrit
e as electron acceptor in anaerobic conditions and in absence of organic carbon.
The inorganic carbon is very necessary to the growth of Anammox
bacteria and to produce new cells , because this bacteria effect
negatively with organic carbon.
Several appearances were assigned in duodenum during endoscopy in patients with celiac disease, this study was conducted to determine the diagnostic value of some endoscopic markers in celiac patients in order to be used in the clinical diagnosis of
the disease an additional factor supporting the diagnosis. The study included 504 children reviewed the different symptoms (failure to thrive, chronic diarrhea or constipation, unexplained anemia, weight loss), and underwent an upper gastrointestinal endoscopy. Four markers were evaluated in the second and third part of the duodenum are: scalloping, reduction of duodenal folds, nodular mucosal pattern, and chronic inflammation (punctate whitish spots) . Celiac disease was diagnosed at 123 patients, which was based on the result of the pathology biopsy taken during endoscopy, the patients ranged in age from 6 months to 15 years. Scalloping was the highest sensitivity and specificity marker of 89% ,96 % respectively. Diagnostic values for these signs in general ( 91% sensitivity, 76% specific, positive predictive value 56 %, and negative predictive value 97% ). We observed that the presence of celiac disease, as well as histological grade rating by Marsh classification respect to the existence of endoscopic markers.
Rock slope failures usually occur along the structural
discontinuities in rock masses, but for weathered and highly
jointed rock masses, failure surfaces are often curved as in soil
slopes.
This paper is concerned with stability analysis of weath
ered and
highly jointed rock slope using shear strength reduction technique by FLAC program, which uses finite difference method.
This paper presents a stability analysis of a rock slope in Khneifees
mines in Syrian desert, to verify that it is safe for workers and
equipments to work beside it, and manipulates the result charts
of FLAC analysis using finite difference method and shear strength
reduction technique to assess the stability of the rock slope,
determine the safety factor of the rock slope and expect failure
mechanism.
In this research, the electrochemical reduction of hydrogen process
and the factors affecting the reduction potential have been studied
in this research. The effect of acid concentration on the shifting of
the volt-ampero-metric curves that expres
s the reduction process
and so its effect on both the reduction potential value of hydronium
ions on drop mercury electrode, and the speed value of reduction
reaction was studied. Then an amount of pyridine as organic
substance was added to a specific volume of acid in a specific
concentration to figure out the relationship between the amount of
pyridine added and the cathode current of the reaction to find out
the effect of added pyridine on the reaction speed and the
relationship between the amount of added pyridine and the
hydrogen reduction potential.
Pyridine was added to amount of acid to study the effect of
theaddition on the hydrogen reduction over potential.
